There might as well have been a "Welcome to the Jungle" banner when you entered his weekend bash. Cuz there were MOTHA-LUVIN animals all up in there!!

Katy Perry and John Mayer had one helluva date with those alligators and kangaroos! Luckily, one eyewitness got all the deets. They say:

"They were really cute. They were standing near each other most of the night, playing with the animals outside. [They] definitely enjoyed each other's company. They almost acted like they've been a couple for a long time. It definitely didn't seem like a new relationship."

Well… it did kinda technically start back in 2009. The night before Russell Brand dazzled her heart, she and Johnny boy were allll over each other.

But we're supah excited for this new blossom of love!! KtP deserves blooming happiness 24/7!